Corner plaster-supporting strip.



No. 647,00l. Patented Apr. 10, I900.

J. KOCH, 1n.

CORNER PLASTER SUPPORTING STRIP.

(Application filed Sept. 1, 1899.) i (No Modal.)

Nrrnn STATES JOHN KOCH, m, or BROOKLINE, MASSACHUSETTS.

CORNER PLASTER-SUPPORTING STRIP.

SPECIFICATION formingpart 02f Letters Patent NO. 647,001, dated April10, 1900. Application filed $eptember 1, 1899. Serial No. 729,265. (Nomodel.)

To ctZZ who-ht it may concern.-

Be it known that I, JOHN KOCH, Jr., a citizen of the United States,residing at Bro0kline, in the county of Norfolk and Commonwealth ofMassachusetts, have invented a new and useful Improvement in CornerPlaster- Supporting Strips, of which the following is a specification.

My invention relates to improvements in the construction of metalliccorner-strips to protect the exposed angles of plastered walls; and itconsists in providing a simple and durable device at a moderate cost.

Figure l is a perspective View of a corner of a plastered wall with myinvention attached. Fig. 2 is a cross-sectional View of Fig. 1.

Similar reference-letters illustrate corresponding parts in the figuresof the drawings.

A designates the studding at the corner of a wall or partition.

B represents the lathing, and C the plastering.

The main part of my metal corner is formed out of a single narrow stripof sheet metal by cutting transverse slits into one edge of the same atregularintervals and bending the material between the slits alternatelyto the right and left to form ears E F to be secured to the studs bynails G G. The portion D of the strip forms the corner against which theplastering is laid. For the purpose of stiffening the strip D to keep itstraight and to provide projections therefrom to cause the plaster toadhere more firmly thereto I provide the reinforcing-cap H, whichconsists of a narrow strip of metal doubled upon itself longitudinallyand having its edges turned out slightly to form the flanges K K. Theaddition of the cap furnishes sufficient stifiness and strength to thestrip to prevent bending when applying it to the corner or when in use,and the outturned edges or flanges furnish projections around which theplaster flows and to which it adheres.

By the use of the construction above described I avoid the openings orperforations in the strip, which tend to weaken it, and accomplish withtheme of less metal all the advantages of doubling the entire strip.

What I claim as my invention, and desire to secure by Letters Patent,is-

A plaster-cornensupporting strip consisting of a narrow strip of sheetmetal having transverse slits cut in one edge and the metal between thesaid slits bent alternately to the right and left at right angles toeach other and forming ears to be secured to the corner, combined with areinforcing-cap consisting of a sheet of metal bent upon the edge of thesaid strip and having its edges turned outwardly, substantially asdescribed.

In witness whereof I hereto set my hand this 5th day of August, A. D.1899.

JOHN KOOI-I, JUN. Witnesses:

CHAS. F. PERKINS, O. L. U. PERKINS.

